2. Write a c program to convert decimal number to octal number.

3. Write a c program to convert decimal number to hexadecimal number.

4. Write a c program to convert octal number to binary number.

3. Write a c program to convert decimal number to hexadecimal number.

4. Write a c program to convert octal number to binary number.

6. Write a c program to convert octal number to hexadecimal number.

8. Write a c program to convert hexadecimal number to octal number.

9. Write a c program to convert hexadecimal number to decimal number.

10. Write a c program to convert binary number to octal number.

9. Write a c program to convert hexadecimal number to decimal number.

10. Write a c program to convert binary number to octal number.

12. Write a c program to convert binary number to hexadecimal number.

13. C program for addition of binary numbers .

14. C program for multiplication of two binary numbers.

15. C program fractional binary conversion from decimal.

16. C program for fractional decimal to binary fraction conversion.

17. C program to convert decimal number to roman.

18. C program to convert roman number to decimal number.

19. C program to convert each digits of a number in words

20. C program to convert currency or number in word.

13. C program for addition of binary numbers .

14. C program for multiplication of two binary numbers.

15. C program fractional binary conversion from decimal.

16. C program for fractional decimal to binary fraction conversion.

17. C program to convert decimal number to roman.

18. C program to convert roman number to decimal number.

19. C program to convert each digits of a number in words

20. C program to convert currency or number in word.

## 21 comments:

ok now the question is , what if I post 123 , or 2985 , in base of 2. Eventually, This isn't binary (base of 2 , combination os 1s and 0s). what code to use to make the program know its not a binary code ?

I can't understand this program please explain with step

A very simple and easy steps to understand please keep on posting such new concept. Also try to explain single example with different types of logic if available.

what does the "j" stand for?

j is used as "base"

initially it is 1.

After first iteration it will be 1*2=2

After second iteration it will be 2*2=4 and so on..

#include

int main()

{

int num, x = 0, y = 0, z = 1;

printf("Enter Your Number: ");

scanf("%i", &num);

while(num > 0)

{

x = num % 10;

y = y + (x * z);

z = z * 2;

num = num / 10;

}

printf("%i", y);

getchar();

return 0;

}

#include

int main()

{

int num = 1101, x = 0, y = 0, z = 1;

//printf("Enter Your Number: ");

//scanf("%i", &num);

while(num > 0)

{

x = num % 10;

y = y + (x * z);

z = z * 2;

num = num / 10;

}

printf("%i", y);

getchar();

return 0;

}

THANKS FOR HELP US.

#include

#include

int main()

{

int dec=0,bin,rem,i=0;

printf("Enter the binary number (0,1): ");

scanf("%d",&bin);

while(bin!=0)

{

rem=bin%10;

dec+=rem*(pow(2,i));

i++;

bin=bin/10;

}

printf("\nDecimal value is= %d\n",dec);

return 0;

}

Time Limit Exceeded. how to improve this algorithm

how do i go about with binary numbers consisting of decimals? example: 1011.11

Good. Thank you

how to limit to only 5 bits. for example ( it i enter more than 5 bits of binary number it will show me "do it again", and if it is lees or equal to 5 bits will work).

thanks

Who on earth would do that if it is clearly mentioned to input binary?

Use bitwise operators!

When I enter bin value = 10 000 000 000, it'll show decimal value = 1824 which is wrong.

I don't understand.

cool

I came across this easy program which I found quite interesting!

#include

int power_func(int c,int d)

{

int value=1;

int count=1;

while(count<=d)

{

value=value*c;

count++;

}

return value;

}

void main()

{

int bin_num[15];

int digit_count,dec_num=0;

int a=0,i;

printf("\nEnter The Number of Digits in Binary Number:\t");

scanf("%d",&digit_count);

printf("\nEnter Binary Digits One After Another:\n");

for(i=0;i=0;i--)

{

dec_num=(bin_num[i]*power_func(2,a))+dec_num;

a++;

}

printf("\nDecimal Equivalent of Binary Number:\t %d",dec_num);

printf("\n");

}

Source: http://www.codingalpha.com/convert-binary-to-decimal-c-program/

Binary to decimal conversion:

#include

#include

int main()

{

int d,i,n[100],r,b=0,len,j;

printf("what is the bit limit of your binary value:");

scanf("%d",&r);

printf("\n the value of binary number is:\n");

for(i=0;i<r;i++)

{

scanf("%d",&n[i]);

}

len=i;

d=len-1;

for(i=0;i<len;i++)

{

b+=n[i]*pow(2,d);

d--;

}

printf("the decimel is:%d",b);

getch();

return 0;

}

input:

what is the bit limit of your binary value:5

the value of binary number is:

1

0

1

0

1

output: the decimal is:21

Decimal to Binary conversion:

#include

#include

int main()

{

int d,i,n[100],r=0,b=0,len,j;

printf("the value of decimal number is:");

scanf("%d",&d);

b=d;

for(i=0;i=0;j--)

{

printf("%d",n[j]);

}

getch();

return 0;

}

input:

the value of decimal number is :21

the binary of 21 is :10101

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